Plug-and-play wireless systems for guitar, bass, and other electronic instruments No complicated setup required—simply Dock the transmitter and receiver together for about 10 seconds to set the optimum wireless Connection Newly developed BOSS technology delivers premium audio performance with rock-solid stability, ultra-low latency (2.3 ms), and 50-foot/15-meter range (line-of-sight Propagation) Built-in rechargeable batteries provide up to 12 hours of continuous playing time Simple charging with a standard USB adaptor (5 V/500 mA or greater) Cable tone simulation reproduces the natural capacitive effect of a 10-foot/3-meter guitar cable (WL-20 model only) Spare wl-t transmitter available separately